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Downhole tool with protective covering

Inactive Publication Date: 2019-08-29
MAGNUM OIL TOOLS INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a cover that can protect oil workers and downhole tools from sharp edges and abrasion while moving through pipes. The cover is made of a strong yet flexible material that can withstand the harsh conditions of drilling. The tool is also wrapped in a smooth plastic covering that reduces interaction with the casing and eliminates the need for cardboard containers. This results in cost savings, longer shelf life, and a more environmentally friendly well site. Additionally, the use of a tool cover can help predict and control the degradation of the tool and release from the casing.

Problems solved by technology

Boxed, crated and palleted tools are subject to humidity during storage and transport.
This may be particularly disadvantageous for tools which are subject to degradation due to humidity.
Well sites are often littered with scores of discarded cardboard boxes, crates and pallets which were used to deliver downhole tools for use at the well.
Consumption of boxes, crates and pallets and littering well sites with them degrades the environment.
Landowners often complain of discarded boxes, crates and pallets left on their land when the well site crew leaves the well site.
Current typical use of typical downhole tool packaging and shipment materials sometimes creates a negative public relations environment for the oil industry.

Method used

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  • Downhole tool with protective covering
  • Downhole tool with protective covering
  • Downhole tool with protective covering

Examples

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Embodiment Construction

[0040]FIG. 1 illustrates downhole tool 12 having an outer surface 22, including sidewall 12a, bottom wall 12b and top wall 12c (see FIG. 3C) at least partially covered by an unshrunk wrap 14. FIG. 1 illustrates a preshrunk wrap about the tool. FIG. 1A illustrates a wrap shrunk tight about the tool so the wrap follows the contours of the outer surface of the tool. FIG. 1B illustrates the wrap in a smooth shrunk condition, achieved by using less heat than used to achieve the shrink tight configuration of FIG. 1A and useful in some embodiments as further described herein.

[0041]FIGS. 2A, 2B and 2C illustrate three forms of heat shrinkable material that may be used to form a wrap 14. FIG. 2A illustrates a heat shrink material comprising a sleeve or tube 16 (open at both ends), typically cylindrical, and, in some embodiments, somewhat stiff, and having a diameter selected to receive the tool therein. In FIG. 2A, the tube has indicia 17 on its surface, the indicia including, for example, a...

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Abstract

Degradable and abradable protective covers closely fitted about degradable downhole tools, and methods and devices for making, packaging, transporting and using degradable downhole tools with such covers.

Description

[0001]This application claims the benefit of, priority to, and incorporates herein by reference U.S. Provisional Application No. 62 / 635,713, filed Feb. 27, 2018 and U.S. Provisional Application No. 62 / 658,736, filed Apr. 17, 2018. U.S. patent application Ser. No. 15 / 355,346, filed Nov. 18, 2016, and Ser. No. 16 / 182,206, filed Nov. 6, 2018, are incorporated herein by reference.FIELD OF THE INVENTION[0002]The field of invention is manufacturing, storage, transportation and use of downhole tools, including downhole tools with a protective cover. Embodiments of degradable and abradable protective covers closely fitted about downhole tools, and methods and devices for making, packaging and using downhole tools with such covers are disclosed. Protective covers for downhole tools to help protect the downhole tools in storage, shipment and at the well site from humidity and handling and during use downhole are disclosed. The cover may be a sleeve, bag or sheet applied after the tool is manu...

Claims

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Application Information

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IPC IPC(8): E21B25/02E21B33/12E21B25/06E21B34/06
CPCE21B25/02E21B33/1208E21B2034/007E21B34/063E21B25/06E21B33/12E21B33/134
Inventor FRAZIER, W. LYNN
Owner MAGNUM OIL TOOLS INT
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